Home / 915,688.92-1,263,626.77-507,789.72

Finding the Fourth Proportional to 915,688.92, 1,263,626.77 and 507,789.72

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Solution

The fourth proportional to 915,688.92, 1,263,626.77 and 507,789.72 is: 700,736.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,688.92 : 1,263,626.77 = 507,789.72 : x
  2. Step 2: Convert to fraction form
    915,688.92/1,263,626.77 = 507,789.72/x
  3. Step 3: Cross multiply
    915,688.92x = 1,263,626.77 × 507,789.72
  4. Step 4: Simplify right side
    915,688.92x = 641,656,681,183.86
  5. Step 5: Solve for x
    x = 641,656,681,183.86/915,688.92
  6. Step 6: Final answer
    x = 700,736.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.